Corporate IT tends to lag in these sorts of things. Given that most people have ISP provided CPE, and that's the only device in their homes, it allows the ISP to have a much easier time migrating that user to IPv6. The rollout mechanisms have been well studied.
On the other hand, corporations tend not to have the same level of skill, and focus in terms of networking as an ISP, like a Comcast, or an AT&T. Additionally, they're not as incentivized to move everyone to IPv6, because often times, it's easier, cheaper, and more realistic to buy some IPs.
Moving to IPv6 at the office is a difficult project for most, as there is still a ton of enterprise gear that's IPv6-less. Even at that, enabling enterprise applications with IPv6 tends to be a massive nightmare. Lastly, the security implications of IPv6 are not well understood by most people in the corporate environment.
On the other hand, corporations tend not to have the same level of skill, and focus in terms of networking as an ISP, like a Comcast, or an AT&T. Additionally, they're not as incentivized to move everyone to IPv6, because often times, it's easier, cheaper, and more realistic to buy some IPs.
Moving to IPv6 at the office is a difficult project for most, as there is still a ton of enterprise gear that's IPv6-less. Even at that, enabling enterprise applications with IPv6 tends to be a massive nightmare. Lastly, the security implications of IPv6 are not well understood by most people in the corporate environment.